EP3938721A1 - Cryostat - Google Patents
CryostatInfo
- Publication number
- EP3938721A1 EP3938721A1 EP20711533.8A EP20711533A EP3938721A1 EP 3938721 A1 EP3938721 A1 EP 3938721A1 EP 20711533 A EP20711533 A EP 20711533A EP 3938721 A1 EP3938721 A1 EP 3938721A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- cryostat
- cooler
- cold plates
- experiment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002474 experimental method Methods 0.000 claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 238000000926 separation method Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005204 segregation Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 241000234282 Allium Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/006—Thermal coupling structure or interface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/50—Cryostats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
- F17C3/085—Cryostats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/12—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using 3He-4He dilution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1894—Cooling means; Cryo cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
Definitions
- the present disclosure relates to a cryostat according to claim 1 for experiments at temperatures in the range of less than 2 K.
- Cryostats and, in particular, segregation cryostats for temperatures in the range of less than 2 K are currently mainly required and built for the development of quantum computers and quantum communication devices.
- the arrangement of the individual temperature levels or cold plates, and thus also the arrangement of experiment stations, is given by the vertical arrangement of conventional cryostats.
- the segregation cryostat according to FIG. 7 comprises six cooling stages 2-1 to 2-6 with four experiment stations 4-1 to 4-4.
- the room temperature area is not equipped as an experiment area.
- the temperature levels of the six cooling stages 2-i are provided by three cooling devices that are not specified in more detail.
- a first cooling device not shown, z. B. a first stage of a GM cooler, comprises a first cold plate 8-1 with the first experiment station 4-1 arranged under the first cold plate 8-1.
- the first cooling stage 2-1 provides a temperature level of approx. 50 K for the first experiment station 4-1.
- a not shown second cooling device for. B. a second stage of the GM cooler, comprises a second arranged under the first experiment station 4-1 Cold plate 8-2.
- the second cold plate 8-2 or the second cooling stage 2-2 is at a temperature level of approx. 4 K.
- the second experiment station 4-2 is at the temperature level of the second cooling stage 2-2 arranges.
- a third cold plate 8-3 of a third cooling stage 2-3 with a temperature level of about 1 K is arranged, which is provided by a third cooling device, not shown, e.g. B. a Joule-Thomson stage, ge is cooled.
- a fourth cooling device not shown, for. B. a 3 He / 4 He separation cooler, provides the temperature levels of the fourth, fifth and sixth cooling stages 2-4, 2-5 and 2-6. Between the fourth cold plate 8-4 and the fifth cold plate 8-5, the third experiment station 4-3 is provided on the fourth cooling stage 2-4. A sixth cold plate 8-6, the deepest cooling stage 2-6, is provided under the third experiment station 4-3 and under the fifth cold plate 8-5.
- the temperature level of the fourth cold plate 8-4 is in the range between 500 and 700 mK
- the temperature level of the fifth cold plate 8-5 is between 100 and 200 mK
- the lowest temperature level of the sixth cold plate 8-6 and the fourth experiment station 4 arranged below it -4 is in the range ⁇ 100 mK.
- the entire arrangement is arranged in a vacuum container 10.
- all six cooling stages 2-1 to 2-6 are wrapped in a first heat shield 12-1.
- the second to sixth cooling stages 6-2 to 6-6 are enveloped by a second heat shield 12-2.
- the fourth to sixth cooling stages 2-4 to 2-6 are enveloped by a third heat shield 12-3.
- the deepest sixth cooling stage 2-6 is shielded by a fourth heat shield 12-4.
- NMR apparatuses or low-temperature devices are known in which probe head components are arranged one below the other or on top of one another when viewed from above at different temperature levels. From the
- DE102011115303A1 can be seen from the drawing that two probe heads are arranged horizontally and vertically offset from one another. Written explanations on this can not be found in DE102011115303A1.
- experiment stations are not arranged one below the other, but next to one another, they are accessible from above and from the side after removing the respective heat shields, whereas in the prior art they are only accessible from the side.
- the juxtaposition of the experiments The height of the cryostat is also reduced considerably and it is possible to operate the cryostat in laboratory rooms with a standard height, which is not possible with cryos with vertically hanging arrangement.
- the juxtaposition of the experiment stations can lead to large-area heat shields, but this disadvantage (increased cooling capacity of the various coolers required for operation) is accepted by the possibility of using them in laboratory rooms with a standard height.
- the advantageous embodiment of the invention according to claim 8 represents a simple juxtaposition of the experiment stations, these are still at different temperature levels.
- experiment stations arranged next to one another are provided, which are located approximately at the same height level.
- FIG. 1 a and 1 b show schematically the basic idea of the present inven tion
- Fig. 3 shows the geometric structure of a second embodiment of the inven tion
- Fig. 4 shows the arrangement of the heat shields in the embodiments of Figs. 2 and 3;
- Fig. 5 shows a third embodiment of the invention with the experiment stations arranged next to one another on one level
- FIG. 6 shows a fourth embodiment of the invention in which a GM cooler penetrates the vacuum container from below
- Figures 1 a and 1 b show schematically the basic principle of the present invention, the juxtaposition of five experiment stations 4-1 to 4-5 on the cold plates 8-1 to 8-5 in one plane.
- the five experiment stations 4-1 to 4-5 which are located on cooling levels 2-1 to 2-5 with the associated temperatures, room temperature 50 K, 4 K, 700 mK and 100 mK.
- Fig. 1 a shows the side by side arranged experiment stations and thus quasi the volume of the experiment stations 4-1 to 4-5 above the respective cold plate 8-1 to 8-5 and Fig. 1 b shows a plan view of the representation according to FIG . 1 .
- FIGS. 2a and 2b show a first embodiment of the invention, in which the cryostat according to the invention has a rectangular cross-sectional shape and the individual experiment stations 4-1 to 4-5 arranged next to one another in one plane are nested in an L-shape; with the fifth experiment station 4-5 as a cube.
- Fig. 3 shows a second embodiment of the invention, in which the basic structure is circular or cylindrical and the individual experiment stations 4-1 to 4-5 surround the einan.
- FIG. 4 shows a possible arrangement of four heat shields 32-1 to 32-4 for the individual embodiments according to FIGS. 2 and 3.
- Fig. 5 shows a third embodiment of the invention.
- the individual components of the cryostat are arranged in a vacuum container 10.
- the vacuum container 10 comprises a base plate 20 on which a lateral border 22 is arranged, which results in a trough 24.
- a pulse tube cooler 26 extends into the tub 24.
- the right side of the side Umran 22 supports a first partial cold plate 30-1 at room temperature.
- a first experiment station 4-1 is arranged on the first part of the cold plate 30-1.
- the first Experimen animal place 4-1 is surrounded by a first heat shield 32-1 and is at room temperature.
- the entire vacuum container 10 represents the first heat shield 32-1.
- a second Käl teplatte 8-2 is provided at a distance from the base plate 20 by support elements 28, which is in thermal contact with the pulse tube cooler 26 and also has a lateral border 22.
- a support element 28 supports an upwardly offset second Operak teplatte 30-2 which is in the plane of the first partial cold plate 30-1.
- the second cold plate 8-2 and the second partial cold plate 30-2 are at a second temperature level of approx. 50 K.
- a second experiment station 4-2 is located on or above the second partial cold plate 30-2. Starting from the second cold plate 8-2, a second heat shield 32-2 closes the second experiment station 4-2.
- a third cold plate 8-3 is arranged on the second cold plate 8-2, which in turn is thermally connected to the pulse tube cooler 26 is coupled and provides a temperature level of approx. 4 K.
- a support element 28 on the right-hand side of the third cold plate 8-3 carries a third partial cold plate 30-3 offset upwards.
- the third partial cold plate 30-3 is located in the plane of the two th and first partial cold plates 30-1 and 30-2.
- a third experiment station 4-3 with a temperature level of about 4 K is arranged.
- a third heat shield 32-3 encloses the third experiment station 4-3.
- a fourth cold plate 8-4 is arranged above the third cold plate 8-3, on which the components of a 3 He / 4 He separation cooler 34 are arranged.
- a support element 28 supports an upwardly offset fourth partial cold plate 30-4 at the level of the other partial cold plates 30-1 to 30-3.
- a fifth cold plate 8-5 is arranged above the fourth cold plate 8-4 at the level of the partial cold plates 30-i at the lowest temperature level of approximately 30 mK.
- a fifth experiment station 4-5 is arranged above or on the fifth cold plate 8-5.
- a fifth heat shield 32-5 encloses the fifth experiment station 8-5.
- the 3 He / 4 He separation cooler 34 between the fourth and fifth cold plates 8-4, 8-5 comprises a still 36 with a concentric heat exchanger 38, a mixing chamber 40 and connections 42.
- the still is thermal with the fourth cold plate 8-4 and the fourth partial cold plate 30-4 coupled.
- the mixing chamber 40 is thermally coupled to the fifth cold plate 8-5.
- Fig. 6 shows a fourth embodiment of the invention, which differs from the third embodiment according to FIG. 5 in that instead of a Pulsrohrküh lers that penetrates the vacuum container 10 from the side, a GM cooler 48 from below approximately centrally to the fifth cold plate 8-5 penetrates the vacuum container 10. The GM cooler 48 also penetrates an opening in the second cold plate 8-2, so that the thermal coupling with the third hot plate can take place.
- the installation of the GM cooler 48 from below results in a slightly narrower, but slightly higher design.
- the side-by-side arrangement of the experiment stations 4-i allows a significantly low construction form. Due to the low height of the cryostat, it is possible to operate the cryostat in laboratory rooms with a standard height, which is what cryostats with a vertically hanging arrangement is not possible. The arrangement of the experiment areas next to one another can lead to large-area heat shields, but this disadvantage (increased cooling capacity of the various coolers required to operate) is accepted by the possibility of using them in laboratory rooms with a standard height.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019203341.5A DE102019203341A1 (en) | 2019-03-12 | 2019-03-12 | Cryostat |
PCT/EP2020/056053 WO2020182671A1 (en) | 2019-03-12 | 2020-03-06 | Cryostat |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3938721A1 true EP3938721A1 (en) | 2022-01-19 |
Family
ID=69844798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20711533.8A Pending EP3938721A1 (en) | 2019-03-12 | 2020-03-06 | Cryostat |
Country Status (6)
Country | Link |
---|---|
US (1) | US20210402407A1 (en) |
EP (1) | EP3938721A1 (en) |
JP (1) | JP7434349B2 (en) |
CN (1) | CN113631878B (en) |
DE (1) | DE102019203341A1 (en) |
WO (1) | WO2020182671A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20240060786A (en) * | 2021-07-08 | 2024-05-08 | 메이벨 퀀텀 인더스트리스, 인크. | All-in-one dilution refrigerator |
US11913714B2 (en) * | 2021-11-02 | 2024-02-27 | Anyon Systems Inc. | Dilution refrigerator with continuous flow helium liquefier |
EP4184081A1 (en) * | 2021-11-18 | 2023-05-24 | Bluefors Oy | Modular cryogenic cooling system |
US11480299B1 (en) | 2022-03-22 | 2022-10-25 | Anyon Systems Inc. | Cryostat and quantum computing system having same |
WO2023196979A2 (en) * | 2022-04-08 | 2023-10-12 | Isthmus Cryotech, Inc. | Cryogenic cooling apparatus and related methods |
EP4265987A1 (en) * | 2022-04-21 | 2023-10-25 | Bluefors Oy | Cryostat, and method for cooling a cryostat |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7117037A (en) * | 1971-12-13 | 1973-06-15 | ||
US5597035A (en) * | 1995-08-18 | 1997-01-28 | Dell Usa, L.P. | For use with a heatsink a shroud having a varying cross-sectional area |
JP2001248927A (en) | 2000-03-07 | 2001-09-14 | Sumitomo Heavy Ind Ltd | Low-temperature device using pulse tube refrigeration unit |
DE102004053973B3 (en) | 2004-11-09 | 2006-07-20 | Bruker Biospin Ag | NMR spectrometer with refrigerator cooling |
DE102005041383B4 (en) * | 2005-09-01 | 2007-09-27 | Bruker Biospin Ag | NMR apparatus with co-cooled probe head and cryocontainer and method of operation thereof |
DE102007028865B3 (en) * | 2007-06-22 | 2009-01-29 | Vericold Technologies Gmbh | Cryogenic device |
GB0904500D0 (en) * | 2009-03-16 | 2009-04-29 | Oxford Instr Superconductivity | Cryofree cooling apparatus and method |
DE102011115303B4 (en) * | 2011-09-29 | 2013-06-27 | Entropy GmbH | Cryogenic device |
DE102014015665B4 (en) | 2014-10-23 | 2016-05-19 | Attocube Systems Ag | Optical table |
CN105350069A (en) * | 2015-12-24 | 2016-02-24 | 洛阳西格马炉业股份有限公司 | Sapphire crystal growing furnace and method for preparing sapphire crystal |
DE102016214731B3 (en) * | 2016-08-09 | 2017-07-27 | Bruker Biospin Ag | NMR apparatus with superconducting magnet arrangement and cooled probe components |
US11205133B2 (en) * | 2018-01-12 | 2021-12-21 | IonQ, Inc. | Vibrationally isolated cryogenic shield for local high-quality vacuum |
GB2592380A (en) * | 2020-02-25 | 2021-09-01 | Oxford Instruments Nanotechnology Tools Ltd | Gas gap heat switch configuration |
KR20240060786A (en) * | 2021-07-08 | 2024-05-08 | 메이벨 퀀텀 인더스트리스, 인크. | All-in-one dilution refrigerator |
-
2019
- 2019-03-12 DE DE102019203341.5A patent/DE102019203341A1/en active Pending
-
2020
- 2020-03-06 WO PCT/EP2020/056053 patent/WO2020182671A1/en unknown
- 2020-03-06 JP JP2021554745A patent/JP7434349B2/en active Active
- 2020-03-06 CN CN202080020221.9A patent/CN113631878B/en active Active
- 2020-03-06 EP EP20711533.8A patent/EP3938721A1/en active Pending
-
2021
- 2021-09-13 US US17/474,021 patent/US20210402407A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN113631878A (en) | 2021-11-09 |
JP2022524818A (en) | 2022-05-10 |
DE102019203341A1 (en) | 2020-09-17 |
JP7434349B2 (en) | 2024-02-20 |
CN113631878B (en) | 2023-11-14 |
WO2020182671A1 (en) | 2020-09-17 |
US20210402407A1 (en) | 2021-12-30 |
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